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🐍 PyPI

GHSA-74r7-3mjm-jc5v

MEDIUM

eduMFA: Unauthenticated Failcounter Increment on Resolver Tokens via /validate/check

Published
May 18, 2026
Updated
May 18, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐍edumfa

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

Impact

If the resolver parameter is passed, but the user does not exist, all failcounters of tokens in that resolver will be increased.

Patches

This, along with other issues, was fixed in eduMFA v2.9.1.

Workarounds

Limiting access to /validate/check to client applications (i.e. Shibboleth/FreeRADIUS) using an authorization policy with api_key_required or using e.g. the reverse proxy.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPIedumfaall versions2.9.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for edumfa. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update edumfa to 2.9.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-74r7-3mjm-jc5v is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-74r7-3mjm-jc5v is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-74r7-3mjm-jc5v. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact If the resolver parameter is passed, but the user does not exist, all failcounters of tokens in that resolver will be increased. ### Patches This, along with other issues, was fixed in eduMFA v2.9.1. ### Workarounds Limiting access to `/validate/check` to client applications (i.e. Shibboleth/FreeRADIUS) using an authorization policy with `api_key_required` or using e.g. the reverse proxy.
O3 Security · Impact-Aware SCA

Is GHSA-74r7-3mjm-jc5v in your dependencies?

O3 detects GHSA-74r7-3mjm-jc5v across PyPI dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.